peters



(No Model.) 2 Sheets-Sheet 1. J. OJ POTTER.

STRIPfiNG MECHANISM FOR GARDING MAGHINES= No.'325,566'. 4 Patented Sept; 1, 1885.

n, PETERS. PhoRo-Lhhegnphar. Washington. 1:. c.

(No Model.)

I 2 Sheets-Sheet 2. J. G. POTTER.

STRIPPING MECHANISM FOR GARDING MACHINES. No. 325,566.

Patented Sept. 1,-1885.

u. 9:12am Phaloblhcgnplmr. Wnhingicn. n. c.

' UNITED STATES miles 0. POTTER, or

PATENT Fries,

LOWELL, MASSACHUSETTS, ASSIGNOR TO-ABEL 'r. ATHERTON, or SAME'PLACE.

STRIPPING MECHANISM FOR CARDING-MACHI NES.

SPECIFICATION forming part of Letters Patent No. 325,566, dated September l, 1885,

v Application filed February 27, 1885. (No model.) 7

To all whom. it may concern:

Be it known that I, JAMES C. POTTER, of Lowell, in the State of Massachusetts, have invented a certain new and useful Improvement in Stripping Mechanism for Garding- Machines, of which the following is a specification.

My improvement relates to the mechanism for stripping the top-flats of carding-machines, and has particular reference to the arrangement and mode of Operation of the strippereardthat is to say, the card by which the top-flats are successively stripped. This stripper-card, as is well known, is carried by a vibratory stripping-1ever,. so-called, which is pivoted to and carried by the weight-lever, the latter being mounted to oscillate upon the axis of the carding-cylinder, and being operated by mangle-rackand pinion, or equivalent mechanism, in the manner familiar to those acquainted'with the art to which my invention relates.

In the operation of stripping top-flats it was formerly customary, (as described in the Wellman Reissued Letters Patent No. 2,705,) in moving the stripper-card back and forth under the top-flat, to so arrange the parts and time their movements that thestripper-eard, in moving forward between the top-card which had previously been elevated,would brush against the teeth of said top-card, after which, and before the return movement of the strippercard, the top-card would be lowered slightly and forced down upon the stripper-card, the

idea being that in this Way the dirt and strippings would be more efl'eetively and thor-- oughly removed upon the return movement V of the stripper-card; but this lowering of the top-card, so as to force the teeth of the two cards together, resulted in seriously injuring and impairing the efficiency of the teeth of the top-card, and has fallen into disuse. The usual way now practiced is for the strippercard to brush against the under face of the elevated top-card during both its forward and its return movement, without, however, lowering or forcing down the top-fiat upon the stripper-card during the return movement of the latter.

The brushing of the stripper-card during its forward movement against the under face of the top-flat, which was practiced under the method described in the \Vellman patent aforesaid, and is retained under the practice now in vogue, is necessary, in order to crowd back from the stripper card the waste that has been collected from the top-flat previously stripped, and thus to put it in condition to act efficiently upon the top-flat to be stripped, which latter operation is accomplished by and during the return movement of the strippercard. In other words, by bringing the two into contact during the forward and return movement of the stripper-card the top-fiat first acts to strip the stripper-card, and the latter then acts to strip the top-flat.

The contact between the top-flat and strip per-card, which, under the existing practice, is necessary during the forward movement of the stripper-card is, however, objectionable for several reasons. It results in seriously injuring the wires or teeth of the top-fiat. These teeth point in a direction opposite to that in which the stripper-card moves when it moves forward, and the consequence is that contact between the two has a strong tendency to straighten out, and consequently to injure and impair the efficiency of the former.

It is the object of my invention to remove the" difficulty referred to, and this I accomplish by combining and arrangingthe parts in such man ner that the teeth of the top-flat and of the stripper-card shall have contact with one andtneb only during the return movement of thelatter, which movement, being in the same direction as that in which the top-fiat teeth point, does not injure the latter. Thus,v the top-flat will have a movement similar to that described in the Wellman reissued patent above referred to-that is, it will be lifted to allow the stri pper-eard,when it moves forward,to pass under it, and will, at the completion of the said forward movement, be lowered slightly, so as to make contact with the stripper-card during the return movement of the latter, the difference being that in the first instance the top flat will be lifted to such aheight as to be'out of contact with the stripper-card, and will be subsequently lowered so as to contact with the latter without pressing forcibly down upon it but under this ar.ra-ngemcnt the to -flat m richfia tl'eh ita dc bdhe e h lt rid the stripper-card of waste and strippings, and it becomes necessary, thereforg topro- 5 vide some other means for this purpose, and

q his 9n la tachte the ht-le er str p-o. ping-tr softt statements-tnreeva uat ing on its under face, and efig'tendsjagrpssthq machine in such position that the stripper- 10 card will dur ing its back and forth motions, move unde-i it were eont/det w'ith its teeth} which latter are so inclined that, as the stripper-cardmovesforward,it (the doffing-bamvfll" stripfro mithe latter'ithe w aste aiid stfrppings that may be on it, and wilhretaimandprowd back the same, thus cleaning the strippercard and puttingit into condition to act effieieiiflyWiptiirthe seetess vzerdenats. I nseam-t im" reverent and the zof iiitiir'riefi nkvliihhthf at eisor be carried "fiiit "easement beneathunderstood by refgef i l l'lstrating and explaining my improv "xiieiit'l In this figure the strippercard and "top-flat which is about to be operated on "are represented in the positions which they 0' occupy at the time the stripper-card has just I completed its forward movement. Fig. 2 is' a like view of a portion of the same on alarger scale, with the parts referred to in the positions which they assume during the return movement of the stripper-card. The latter is represented as having begun its return movement. Fig. 3 is a detail view showing the cam by which the top-flats are raised; also the top flat lifter and portion of the weighted o lever. v p

A is the carding-machine. B are the topflat's. C is the axis of the rotating powerdriven carding-cylinder. D is the weighted lever mounted to oscillate on the axis of the 5 carding-cylinder, and operated to move in the usual way through the instrumentality of the mangle-rack and pinion mechanism ordinarily employed for the purpose. Eis the strippinglever, pivoted at a to the weighted lever, provided with a roller-stud, I), which works in the cam-groove c of the rotating cam-gear F,

mounted on and carried by the weighted lever, as usual, and having at its upper end the customary stripper-card, G. I I 5 5 The arrangement of parts thus far described is well known and requires no further description, being similar to that shown, for instance, in Letters Patent No. 244,302.

The cam-wheel F is rotated from the cusoo tomary pulley, 1, on the hub of the carding cylinder, by means of belting 2 between that pulley and another pulley, 3, at theupper end of the weighted lever, on the hub of which is a pinion, 4, which, through the intermediategearing, 5 and 6, (also carried by the weighted lever), drives the cam-wheel. The direction ef revolutionvqf the parts is indicated by the entries; i 15;: ULL

H represents the ordinary sliding top-flat lifter which is mounted and moves up and 'down in the weighted lever at appropriate times, being actuated thus to move by mech- '-anisinshniito that described-in the Well-man efieislstledfllgetters Patent before referred to, or other mechanism of a like type, such as the cam f f, carried by the wheel F, which cam is adapted to engage a pin, h, on the top-flat lifter H, the only difference being that the range of movement of the lifter is such that, when raising the top-flat to permit the stripper-card to move forward,it,by the portion f of said cam, raises said fiat high enough to carry it wholly above and out of contact with the stripper-card, as indicated in Fig. 1, and when l lowering said net, at or about the time the re- 1 turn movement of the stripper 5 card coinmen'ce's, it lowe'rs' it far enough only tosimply make contact with the stripper-card, as indicated in Fig. 2, without forcing the flat down upon the card, as contemplated under the Wellman method referred to,

referred to is shown at I. It extends across the machine in such position that the'str'ipperc'ard will pass beneath and in contact with it in moving back and forth,as indicated in Figs. 1 and 2, audit is attached to and moves with the weighted lever. (It will of course be enderstood thatthere is 2 ever the other side of the machine corresponding to the weighted lever referred to, and that the stripping or doffing bar is attached to and extends across between these two levers.)

J represents one of theusual series of curved arms or wires attached to the stripper'rc'ard in such position as to form a cradle or receptacle to receive and hold the waste stripped and crowded back from the strippercard, and thiis to prevent the same from dropping onto the carding-machine. V

The operation is as follows Suppose the machine to be in operation and the stripping mechanism to have been brought opposite to the top-flat to be stripped, that flat is raised by the lifter until it is entirely above and out of the path of the stripper-card. The latter, by its lever and operating scam, moves forward under the raised top-flat until it reaches the extreme of its movement in that direction, in which position it is represented in Fig. 1. The top-flat is now lowered by the lifter sufficiently to bring its wires into contact with the wires on the stripper-card, as indicated in Fig. 2, and the latter is then returned to its original position, earrying'with it the waste removed by it from the top-flat, and moving far enough to bring its front end under the doffing-bar I. The weighted lever with the mechanism carried by it now moves on to another flat,and upon its arrival at the same it stops,and the stripping-lever is again moved to carry forward the stripper-card.

The stripping or doffin'g bar herein'before As the latter so moves,its teeth are drawn under the doffing-bar I, which strips therefrom the waste collected from the previous top-flat, leaving the stripper-card clean and in condition to operate efiiciently upon the top-fiat to be stripped. The waste thus taken by the doifing-bar from the strippercard is shoved back grad'uallyto the collecting-wires or cradle J, where it is held and prevented from dropping down onto the machine. ation proceeds in the order stated until all of the flats have been stripped.

Having described my improvement and the best way at present known to me of carrying the same into efi'ect, I desire,in c0nclusion,t0 be understood as not restricting myself to the mechanical details hereinbefore set forth,since the same can be varied without departure from the invention; but

What I claim as new and of my invention 15-- 1. The combination of the top-flats, the topflat lifter, the stripper-card, and mechanism for actuating said card and lifter, arranged The operand operating in the manner hereinbefore set .forth, so that the top-flat shall be raised above and out of contact with the stripper-card during the forward movement of the latter, and shall have contact with the same only during the return movement of said card.

2. The combination of the weighted lever, the stripping or doffing bar carried by the same, the stripper-card, its lever and actuating mechanism and the top-flat mechanism, arrangedand operating, substantially as described, to lift and hold the top-flat above and out of contact with the stripper-card during therforward movement of the latter, and then to lower said flat sufficiently to bring it into contact with the said stripper-card during the return movement, the combination being and acting substantially as hereinbefore set forth.

In testimony whereof I have hereunto set my hand this 5th day of February, 1885.

J AMES 0. POTTER.

'Witnesses:

EDWARD E. RIPLEY, CHAS. T. ATHERTON'. 

